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02-09-2021
Chemistry

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Determine the number of:
(a) atoms in 5.0 g of silver, Ag.
(b) carbon atoms in 0.50 mol of ethane, C2H4.

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rspill6 rspill6

02-09-2021

Answer: Ag: 2.79x10^22 atoms

C atoms: 6.02x10^23 C atoms

Explanation:

5.0 grams of Ag is 0.0464 moles of Ag. (0.0464 moles)*(6.02x10^23 atoms/mole) = 2.79x10^22 atoms Ag

(0.50 moles)*(6.02x10^23 molecules/mole)*(2 C atoms/molecule) = 6.02x10^23 atoms of C

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